I googled this and found a handful of people who lost the True Tone ability when they moved from iOS 11 to 12. Never seen it with a brand new phone, but here I am. It didn’t work out of the box, so I set up as new iPhone 3 times. Then it showed up, but I decided to reboot my phone to see what would happen. When I turned it back on, True Tone was gone again. I tried to reset as new 3 more times to no avail. I’m going to return the phone ASAP, just wondering if I’m the only one with this issue? Is this most likely a hardware or software issue? Seems weird to me.